Hydrology in Civil Engineering
The science which deals with the occurrence, distribution and circulation of water is called
hydrology. The study of hydrology is useful for the following :
1. For the proper design and operation of hydraulic structures.
2. For ascertaining flood flows expected at a spillway or highway culvert or in a city drainage
system.
3. For ascertaining reservoir capacity to ensure adequate water for irrigation or municipal
water supply during draughts.
4. For ascertaining the effect of reservoirs, levees, and other control works in flood flow in a
stream.
Notes: (a) The science which deals with the physical features and conditions of water on the earth surface is
called hydrography.
(b) The science which deals with the measurement of water is called hydrometry.
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